viewport 0.25 0.75 0.2 0.9 # Set viewport size. expand 1.1 # Set the character size. font 2 # Set the font type. image orion.fits 1 # Read in plane #1. winadj 0 nx 0 ny # Set the x/y scale to be the same. header rd # Read header and set limits. set \1 x1 # Save the limits of this rectangle. set \2 x2 set \3 y1 set \4 y2 halftone 0 20 # Draw the halftone. image iras60.fits # Read the second image. header rd # Get the coordinate transfer function. set \11 x1 # Save the limits of ... set \12 x2 # ...this smaller rectangle. set \13 y1 set \14 y2 limits \1 \2 \3 \4 # Override 2nd image limits with 1st. levels 40 60 80 100 # Set the contour levels. contour # Draw the contours. move \11 \13 # Draw a box around... draw \12 \13 # ...the limits of... draw \12 \14 # ...the smaller box. draw \11 \14 draw \11 \13 box bcnsthz bcnstvdyzf # Draw a box. expand 1.5 # Make the next labels a bit bigger. mtext T -2 0.15 0 \u12\dCO T\dmax mtext T -12 0.15 0 60\gmm expand 1.1 # Reset the character size. xlabel \ga (1950) mtext L 3.5 0.5 0.5 \gd (1950)
Figure E.12: A plot demonstrating how to overlay different images.